The Needles Old Battery (National Trust) 

The threat of a French invasion prompted the construction in 1862 of this spectacularly sited fort, which now contains exhibitions about the Battery's involvement in the First and Second World Wars and the Headland's intriguing past as a secret rocket testing site. The Battery retains two of its original gun barrels, and the laboratory and position-finding cells have been restored. A 60yd tunnel... More details